These seem to be more complicated versions of the Yosemite Bowline; do you have any info on that one? It’s been my go-to bowline for all applications (climbing, sailing), yet now I’m wondering whether it has some weakness I don’t know about.
I think the only weakness with Yosemite bowline is if tied wrong. Bowline backed by a double overhand is about as fast to tie and easier to check IMO, but if you are used to Yosemite then maybe it's the opposite for you.
Ring bend should only really be used for webbing.